|
| |
|
|
A129364
|
|
Product A066841(k), k = 1..n.
|
|
2
|
|
|
|
1, 2, 6, 96, 480, 207360, 1451520, 2972712960, 722369249280, 5778953994240000, 63568493936640000, 9111096278347394580480000, 118444251618516129546240000, 10400352846118664303196241920000
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
Conjecture: a(n) divides A092287(n) for all n - see comments in A129365.
|
|
|
LINKS
|
Table of n, a(n) for n=1..14.
|
|
|
FORMULA
|
a(n) = product[product{d|k} d^(k/d)], k = 1..n. a(n) = product[((floor(n/k))!)^k], k = 1..n.
|
|
|
CROSSREFS
|
Cf. A007955, A066841, A092143, A092287, A129365.
Sequence in context: A218151 A007188 A206156 * A092287 A035482 A007870
Adjacent sequences: A129361 A129362 A129363 * A129365 A129366 A129367
|
|
|
KEYWORD
|
easy,nonn
|
|
|
AUTHOR
|
Peter Bala, Apr 11 2007
|
|
|
STATUS
|
approved
|
| |
|
|